A cylinder of 125mm radius rotates concentrically inside a fixed cylinder of 130mm radius. Both cylinders are 300mm long. Determine the viscosity (in Pa-s) of the liquid which fills the space between the cylinders if a torque of 0.88 N-m is required to maintain an angular velocity of 2n radians/sec.

A cylinder of 125mm radius rotates concentrically inside a fixed cylinder of 130mm radius. Both cylinders are 300mm long. Determine the viscosity (in Pa-s) of the liquid which fills the space between the cylinders if a torque of 0.88 N-m is required to maintain an angular velocity of 2n radians/sec.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

A cylinder of 125mm radius rotates concentrically inside a fixed cylinder of 130mm radius. Both cylinders are 300mm long. Determine the viscosity of the liquid which fills the space between the cylinders if a torque of 0.88 N-m is required to maintain an angular velocity of 2π radians/sec. Assume the velocity gradient to be straight line.
A cylinder of 0.40-ft radius rotates concentrically inside a fixed cylinder of 0.42-ft radius. Both cylinders are 1-ft long. Determine the viscosity in terms of Reyn of the liquid that fills the space between the cylinders if a torque of 0.650 lb-ft is required to maintain an angular velocity of 60 rpm.
To determine the shear stress of oil, two horizontal plates are placed 15 cm apart, the space between them is filled with the oil of viscosity 15 poise. If the upper plate is moving with velocity 2,000 mm/s, find the shear stress (τ).
By means of a torque T, a disk 1 is rotated with an angular velocity w1. In the gap "between the two disks shown there is an oil of viscosity. If disk 2 rotates freely under the action of disk 1 and both disks have a diameter D. Determine the expression for rotation w of disk 2, neglecting external effects.
A cylinder of 250mm in diameter rotates concentrically inside a fixed of 130mm radius. Both cylinders are 300mm long. Determine the viscosity of the liquid which fills the gap between the cylinders if a torque of 0.88N-m is required to maintain an angular velocity of 2π radians/sec. Assume the velocity gradient to be a straight line. Determine the viscosity of the liquid in poise.
If the viscosity of water at 70 °C is 0.0042 poise and its specific gravity is 0.97, determine its kinetic viscosity in centistokes.
Determine the force required to drag a thin plate placed in themiddle of two parallel plates 24 mm apart with the space filledwith a fluid of viscosity 0.82 Ns/m2. The area of the plate is 0.5 m2and the speed at which it is dragged is 0.6 m/s. Also find the force ifthe thin plate is at 8 mm from one of the plates.
A 150-mm diameter vertical cylinder rotates concentrically inside another cylinder of 151-mm diameter. Both cylinders are 250-mm in height. The space between the cylinders is filled with a liquid with viscosity of 10 poise. Determine the torque required to rotate the inner cylinder at 100-rpm in N-m.
Physics A cylinder of 0.3m length and 0.1m diameter rotates about a vertical axis inside a fixed cylindrical tube of 105mm diameter, and 0.3m length. If the space between the tube and the cylinder is filled with liquid of dynamic viscosity of 0.125 Ns/m 2 . Determine the speed of rotation of the cylinder that will be obtained if an external torque of 1.0 N.m is applied to it.
A liquid has an absolute viscosity of 1.532 x 10-2 N s/m2. Determine its specific weight and kinematicviscosity if it has a density of 0.8962 kg/L
If the viscosity of water at 70 deg C is 0.00403 poise and its specific gravity is 0.967, determine its kinematic viscosity in stokes.a
Two large planes are parallel to each other and are inclined at 30°V to the horizontal with the space between them filled with a fluid of viscosity 20cP. A small thin plate of 0.125m square slides parallel and midway between the planes and reaches a constant velocity of 2m/s. The weight of the plate is 1N. Determine the distance between the plates.